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5/20/2018 jdsu
1/40 2005 JDSU. All rights reserved. ACTERNA TEST & MEASUREMENT SOLUTIONS1
Eugen TakcsJDSU - AUSTRIA
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2/40 2005 JDSU. All rights reserved. ACTERNA TEST & MEASUREMENT SOLUTIONS2
Untersttzung fr Innovationen in Breitbandnetzen
JDSU ist der weltgrsste Hersteller von Messtechnologien frKommunikationsmesstechnologien
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San Jose, CA
Worldwide locations*
Corporate Headquarters
* Not including sales offices
10 manufacturing sites
3 countries
ISO 9001 certified
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Verkauf- und Service Bros
Bros
Divisionen
Weltweite Vertretungen
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Modulator
Decoder oderSet-Top-Box
(STB)
1 0 1 1 0 0 1 0 1
Encoders
.
..
Multiplexer
Das digitale Fernsehsystem
Bild- und Sprachquellen komprimieren
Dateninformationen vorbereiten
Bild, Sprache und Daten multiplexen
Zugangs- und Serviceinformationen beifgen
bertragung berKabel/Satellit/Richtfunk
Demultiplexen Decodieren
Ansehen im Fernsehen
Irrelevanz-Redundanz-Reduktion
Quellenkodierungnach MPEG-2
Multiplex Signal
Fehlerschutz
Fehlerschutz
Kanalkodierungnach DVB
BitratenachKanalkodierung
EPG: Electronic Program Guide: Conditional Access keys
SI: Service InformationPSI: Program Specific Information
: Synchronization
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Video Dienste in ADSL Netzen
IP/ATMCore
DSLAM
DSLAM
DSLAMMPEG demux
POTS Splitter
PC
xDSL
Modem
IGMP v2 (TVoDSL)
Video
RTSP (VoD)
Internet
xDSL links
ADSL(up to 8 Mbit/s): 1 qualityvideo stream
ADSL2+(up to 24 Mbit/s)
VDSL(up to 26/52 Mbit/s): 3simultaneous quality video
Multiple VCs
Broadcast Video: Channel changing isaccomplished by sending IP data-grams
(IGMP RFC-2236)
Video-on-Demand (VoD) :Programs arerequested using real Time Streaming
Protocol (RTSP), RFC 2326.
GigE
Video
Server
GigE
Head-end
switch node
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HOCHFREQUENZ STRUNGEN
Das digitale Signal kann 2 verschiedene Strungen haben.
HF Strungen
Tabellenstrungen
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C/N vs. BER/SES* vs. MER
* Bit Error Rate/Severely Errored Seconds
No FEC
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(Gradually poorer C/N)
Effect of Noise on Analog Systems
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(Gradually poorer MER)
Noise has very little affect on digital systems
until the system fails completely
Effect of Noise on Digital Systems
No FEC
C/N BER/SES MER
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C/N vs. BER/SES vs. MER
No FEC
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RMS
ErrorMagnitude
Ideal
Symbol
Average
SymbolMagnitude
Modulation Error Ratio (MER)
MER is defined as follows:
Expressed in dB
RMS error magnitude
Average symbol magnitude-20 log
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Error Vector Magnitude
Q
I
Transmitted
Symbol
Target Symbol
Error Vector
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Error
Magnitude
Ideal
Symbol
Max Symbol
Magnitude
Average error magnitude
Max symbol magnitudeX 100%
Error Vector Magnitude (EVM)
EVM is defined as follows:
Expressed in percentage
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64 QAM
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256 QAM
Ingress under carrier
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Ingress under carrierIn-service !!!!
Interference will cause poorMER
Noise
Discreet Signal Ingress
Bad Modulator
CSO/CTB (TV)
CSO/CTB Digital
Only SDA can show ingress in-service under the digital carrierwithout interrupting the digitalservices
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Automatic Distance to Fault (TDR)
720x576
1920x1080 / 1280x720
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Encapsulation of Video, Audio and Multiplexing
CAT: Conditional Access TableES: Elementary StreamECM:Entitlement Control MessageEMM: Entitlement Management MessagePAT: Program Association TablePCR: Program Clock ReferencePMT: Program Map tablePES: Packetized ESPID: Packet IDentificationPTS: Presentation Time StampSPTS: Single Programme TSTS: Transport Stream
Video
Clock(27MHz)
andcontrol
Audio
coding coding
PES PES
SPTS SPTS
MUX
ES ESESImagestructure
MPEG-2
Video syntax
MPEG-2System Syntax
Pictures: I P B
MPEG Video ES/PES and TS:
PESPES HeadercontainsPTS
Useful data
. . . .
Payload
SPTS
Stuffing/Adaptation Fieldcontains PCR infromation
Fixed length (188 bytes)Transport Packets
GOP
Video Fromat: MPEG-2 (ISO/IEC IS 13818-2) 2-8/20 Mbps MPEG-4 Part 10 = Advanced Video Coding (AVC) =
H.264 File Format 1-4/10 Mbps VC-1: SMPTE Standard fr Video Codec used
by WM9: Microsoft Windowss Media 9
H.263 Used in 3GPP File Format (3rdGenerationPartnership Project)
Audio Format: MPEG-2 (ISO/IEC IS 13818-3)
Layer: L1, L2 (DVB, DVD), L3 (MP3) MPEG-2/4 AAC (Advanced Audio Coder): For
Surround sound Dolby Digital AC3 (Audio Code N3): For stereo an
surround sound AMR Adaptive Multi-Rate codec (GSM
networks):has been adopted by 3GPP for 3G
Transport Stream
PMT Prgm 1PID 0x100
PMT Prgm 2PID 0x110
EMMSys 1
Video Prgm 1PID 0x1000
Audio Prgm 1PID 0x1010
...
ECM ES j
PATPID 0x00
CATPID 0x01
System Tables System Tables System Tables
TV
HDTV
720x576
TS Header
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Bouquet:BAT (DVB).
Network:NIT (DVB).
Channel (TS):
SDT (DVB services),
PAT (MPEG PMTs).
Programs in current channel:
EIT (DVB events),
PMT (MPEG ESs).
oder
DVB-SI (Service Information)
NetworkTransportStream
Service
Bouquet
Grnde fr die Service Information: Erweitert die MPEG-2 Kanalweiterschaltung zu allen Kanlen innerhalb eines
Netzwerks oder zu allen Netzwerken welche von einem Reception Pointzugnglich sind.
DVB macht d ie Programmw ahl mglich;
MPEG-2 ermgl ich t das Au ff inden d er Programme.
Warum ist eine MPEG Analyse notwendig ?
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Warum ist eine MPEG Analyse notwendig ?
Zeit
Bild Qualitt:
prgm 1
prgm 2
prgm 3
Birate
1stscene 2ndscene
PMT
CATPID 0x00 PID 0x01
PAT
PID 0xYYProgram
Association
Table
Conditionnal Access Table
Program Map TableMPEG-2PSI
Quality of Service ist nichtselbstverstndlich
abhngig von der effizienten Nutzung der
verfgbaren Bandbreite abhngig von der Konsistenz und dem
Vorhandensein der Daten:Transport Pakete werden ber eine PIDreferenziert
Tabellen und Deskriptoren enthalten kritischeService Information
hohe Wiederholungsraten fr Tabellennotwendig
relevante Information ist in verschiedenenTabellen verteilt
Verantwortung fr die Qualitt ber diegesamte bertragungskette ist aufverschiedene Parteien aufgeteilt.
Eine neue Technologie, die es zubeherrschen gilt.
Synchronisation ist obligatorisch fr den Datenmultiplex
Ende-zu-Ende Synchronisierung innerhalb jedes Programmes
Audio / Video / Daten
TS Analyse in MPEG-2/DVB Systemen
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y ySzenarien fr Inbetriebnahme, Wartung und berwachung
Modulator
Demod.
A
NetworkAdapter
Distribution
ATM, SDH...
A
Encoder
Multiplexer
Accesscontrol
Remux
A
Contribution
AA: TS AnalyzerTS: Transportstrom
A
A
Prioritt der Fehler gemss ETR 290 (ETSI TR 101 290)Prioritt 1: Notwendig fr die Decodierbakeit (Basisberwachung)
Prioritt 2:Empfohlen fr die kontinuierliche/periodische
berwachungPrioritt 3: Anwendungsabhngige berwachung
TR 101 290
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0 90Prioritt 1, Notwendig fr die Decodierbakeit
ETR Type Description Condition
1.1 Stream Transport Stream Synchronization Loss 2 consec. Pkt 0x47
1.2 Stream Received single sync byte error synch byte 0x471.3 Stream Invalid scrambling on PAT PID Scrambling_ctrl_field 00
1.3 Table PAT not found
1.3 Table PAT repetition rate too slow 0,5s
1.3 Table PAT no longer present 2s
1.3 Table Received table other than PAT on PID 0x0
1.4 Stream Received more than two duplicate packets
1.4 Stream Continuity Counter Error
1.5 Stream Invalid scrambling on PMT PID Scrambling_ctrl_field 00
1.5 Table PMT not found
1.5 Table PMT repetition rate too slow 0,5s
1.5 Table PMT no longer present 2s
1.6 Stream Referred PID not found
TR 101 290 Prioritt 2,
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TR 101 290 Prioritt 2,Empfohlen fr die kontinuierliche oder periodische berwachung
ETR Type Description Condition
2.1 Stream Transport Error Indicator Bad RSTEI=1
2.2 Table Table CRC Error
2.3 Timing Referenced PCR not found
2.3 Timing DVB interval too long between PCR arrivals 40ms
2.3 Timing PCR discontinuity greater than user selected value 100ms
2.4 Timing PCR accuracy is not within 500 ns2.5 Timing Interval too long between PTS arrivals 700ms
2.6 Table CAT not found
2.6 Table CAT repetition rate too slow 2s
2.6 Table CAT no longer present 8s
2.6 Table Received table other than CAT on PID 0x1
TR 101 290
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Prioritt 3, Anwendungsabhngige berwachung
ETR Type Description Condition
3.1 Table NIT Actual not found
3.1 Table NIT Actual repetition rate too slow 10s3.1 Table NIT Actual no longer present 40s
3.1 Table NIT Other repetition rate too slow 10s
3.1 Table Received table other than NIT/ST on PID 0x10
3.2 Table SI repetition rate too slow
3.2 Table Spacing between SI sections too short 25ms
3.3 Stream Buffer overflow
3.4 Stream Unreferenced PID detected 0,5s
3.5 Table SDT Actual not found
3.5 Table SDT Actual repetition rate too slow 2s
3.5 Table SDT Actual no longer present 8s
3.5 Table SDT Other repetition rate too slow 10s
3.5 Table Received table other than SDT/BAT/ST on PID0x11
TR 101 290
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Prioritt 3, Anwendungsabhngige berwachung
ETR Type Description Condition3.6 Table EIT P/F Actual not found
3.6 Table EIT P/F Actual repetition rate too slow 2s
3.6 Table EIT P/F Actual no longer present 8s3.6 Table EIT P/F Other not found
3.6 Table EIT P/F Other repetition rate too slow 10s
3.6 Table EIT P/F Other no longer present 40s
3.6 Table EIT Schedule Actual not found
3.6 Table EIT Schedule Actual repetition rate too slow 10s
3.6 Table EIT Schedule Actual no longer present 40s
3.6 Table EIT Schedule Other not found
3.6 Table EIT Schedule Other repetition rate too slow 30s
3.6 Table EIT Schedule Other no longer present 120s
3.6 Table Received table other than EIT/ST on PID 0x12
3.7 Table Received table other than RST/ST on PID 0x13
3.8 Table TDT not found
3.8 Table TDT repetition rate too slow 30s3.8 Table TDT no longer present 120s
3.8 Table Received table other than TDT/TOT/ST on PID 0x14
MPEG-2 SystemZ it t l (ti t ) d S h i ti (PCR)
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System clock27 MHz
PES time stamp:PTS und DTS
PCR:
33 bit counter (Zyklus: 26,5 Std.)1xPCR pro Programm oder proTransportstrom
System clock27 MHz
PES time stamp: PTS und DTS
PCR
P.L.L.P.L.L.
P.L.L.
Presentationfrequency
Presentationfrequency
yZeitstempel (time stamp) und Synchronisation (PCR)
1/ Encoder 2/ Multiplexer 3/ STB: Demux, Decoder, Buffer 4/ TV
DEMUX
TS
PCR: Program Clock Reference
PTS: Presentation Time StampDTS: Decoding Time Stamp
PCR Jitter [2.3, 2.4] ETR Value
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[ , ]PCR spacing: 2.3 40 ms
PCR discontinuity: 2.3 100 ms
PCR jitter: 2.4 +/- 500 ns
PCR frequency offset: +/- 810 Hz
PCR drift rate: 75 mHz
PTS spacing: 2.5 700 ms
Referred PID [1.6, 3.4]
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Referred PID [1.6, 3.4]
CharacteristicsPrgm 1
ES n1PID
ESn1
PIDESn2
ES n2
CharacteristicsPrgm 2
CharacteristicsPrgm i
ES nj PIDESnj
PMT (Program Map Table)
ECM
PMTPrgm 1
Video AudioData
...
MPEG-2Transport stream
1.6 Ref. PID not Found
CharacteristicsPrgm 1
PIDESn2
ES n2
CharacteristicsPrgm 2
CharacteristicsPrgm i
ES nj PIDESnj
PMT (Program Map Table)
ECM
PMTPrgm 1
Video AudioData
...
MPEG-2Transport stream
3.4 Unref. PID detected
GigE Interface
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GigE Interface
Support IGMP Multicast Control:
Video Decoding
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Video Decoding
Provides viewing of Videoelementary stream in the transportstream:
Thumbnail of all Video Programs inTransport Stream
Real-time decode of 1 VideoProgram at a time
View 6 parameters for each VideoProgram
MPEG-2 and MPEG-4Videossupported
MPEG-4 / H.264 Analysis in TS
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y
Complementary applicationVISUALmpeg Offline Video analysis
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VISUALmpeg - Offline Video analysis
VISUALmpeg 110Video Elementary Stream Analzer :- Header information, picture coding type, quantizer values,
motion vectors, macro block types, VBV buffer model
- Bit allocation, DCT coefficients, picture frequencies, MPEGartefacts,
VISUALmpeg 150Video Elementary Stream Analyzer and QualityAnalyzer:
All features of VISUALmpeg 110 plus video qualitymeasurements:
Bit rate viewer, bits per frame diagram, framedistortion index, frame quality index
Complementary applicationInterra H264 Analyzer - Offline A/V Compliance Checker
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Interra H264 Analyzer - Offline A/V Compliance Checker
Key Features Supports the H.264, MPEG-2
Transport, MPEG-4 Video,MP4, and the AAC Audiostandards
Has an extensible architectureto support other audio (i.e.
AC3), video formats
Provides powerful debugcapabilities to quickly locateproblem areas
Complementary applicationInterra VC1 Analyzer - Offline A/V Compliance Checker
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Supported formats: VC1 (WMV)
MPEG-4 Part 2 Visual
MPEG-1/MPEG-2 Video
AC-3 Audio
AAC Audio
AMR Audio
MP4 File Format
3GPP
MPEG-2 Transport
Interra VC1 Analyzer - Offline A/V Compliance Checker
End to End solution architecture
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End to End solution architecture
CopperPlant
DSLAM
DTS-200/330
GbE
DVB TSIP MUX
ATM / IP
QT-200
Pre-qualify copper plant capability
Permanently check the Validityof the source
Measure the End Customerexperience
End to End trouble shoot on demand.
Check of the MPEG services a the sourceTR 101 290 MonitoringBit rate measurementPCR analysis
Table analysisES offline analysis (VISUALmpeg/Interra H.264)
HST-3000
QPSK
IPTV&MPEG measurement with DTS-200/330
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MPEG-2/DVB Messtechnik
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Electronic Program Guide (EPG)Conditional Access (CA) keysService Information (SI)Program Specicific Information (PSI)PCR Synchronization
Re-multiplexing
TSTS
(Transportstrom)
DVB-CQAM
Zubringer
IP, SDH, ATM,Satellit und Funk
STB(Set Top Box)
SDH
Studio A
Studio Z
IP
Router/Gateway
DTS Messgerte
DVB-TCOFDM
Acterna MPEG-2/DVB Produktangebot
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DTS-200 - MPEG-2 Field InstrumentDer DTS-200 erlaubt den Betreibern digitaler Netze undSystemanbietern die Fernanalyse ihrer MPEG-Datenstrmesowie die Ausfhrung verschiedener Testanwendungen.
DTS-330 - Digital Broadcast Test PlatformDie DTS-330 Digital Broadcast Test Platform ermglicht die
Analyse, Simulation und Erzeugung von MPEG-2 ATSC- undDVB-Transportstrmen.
MultipleInterfaces:ASI/LVDSQAMQPSK
GigECOFDM
DTS-200 bersicht
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Player / Recorder
DTS-PR:Play (P)Record (R)Filter on PID
Analyse
DTS-A:Echtzeit-AnalyseCapture on trigger
Tx ASI / SPI-LVDS Interf ace Rx ASI / SPI-LVDS und /oder GigE/RF Interface
Optionen:
MHP, OpenTV Analyse Interfaces:GigERF: QAM, QPSK, COFDM
DTS-200 PRDTS-200 P
DTS-200 RA
DTS-200 PRA
Dual Play, 2Tx
DTS-200 A
DTS-200 R
Dual analysis, 2Rx